Port v3.0 of Speedometer from Webkit [1] repo and update tarballs.
"version" field can be added to the workload agenda file to specify
which version of Speedomer should be used.
Size of v3.0 tarball is around 12 MB if the compression type is gzip.
Thus, in order to reduce total size of the repo, compress Speedometer
archives in LZMA format.
1. https://github.com/WebKit/WebKit/tree/main/Websites/browserbench.org/Speedometer3.0
Signed-off-by: Metin Kaya <metin.kaya@arm.com>
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